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Author Topic: Sennheiser N antenna cables, watchout  (Read 3693 times)

Jens Palm Bacher

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Sennheiser N antenna cables, watchout
« on: July 26, 2015, 03:39:59 pm »

Just found an Aircell 7 HF cable with N connectors from Sennheiser with the centerpin too far forward. It has caused 2 broken connectors on our Sennheiser 9000 antennas, watch out...
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Keith Broughton

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Re: Sennheiser N antenna cables, watchout
« Reply #1 on: July 26, 2015, 04:14:16 pm »

Just found an Aircell 7 HF cable with N connectors from Sennheiser with the centerpin too far forward. It has caused 2 broken connectors on our Sennheiser 9000 antennas, watch out...
Noted...thanks  :)
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Jason Glass

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Re: Sennheiser N antenna cables, watchout
« Reply #2 on: July 26, 2015, 07:53:55 pm »

Just found an Aircell 7 HF cable with N connectors from Sennheiser with the centerpin too far forward. It has caused 2 broken connectors on our Sennheiser 9000 antennas, watch out...

Thanks for the info!

I harp on the guys that I work with constantly about extended and retracted coax pins.  I'm sure that they're tired of hearing about it from me.

Jerome Malsack

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Re: Sennheiser N antenna cables, watchout
« Reply #3 on: July 27, 2015, 03:02:23 pm »

A picture of the correct position on the center pin would help me the novice. 
Could someone please post a correct pin for comparison ?

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Henry Cohen

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Re: Sennheiser N antenna cables, watchout
« Reply #4 on: July 27, 2015, 07:34:13 pm »

Just found an Aircell 7 HF cable with N connectors from Sennheiser with the centerpin too far forward. It has caused 2 broken connectors on our Sennheiser 9000 antennas, watch out...

This is a problem with all air dielectric coax (Belden 9913, Wireman CQ102, etc): The repeated coiling and uncoiling causes the center conductor to walk. Especially bad on shorter cables. This type of coax was never designed for repeated deployments. I'll bet the other end of Jens' coax had the pin recessed too far into the connector.
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Henry Cohen

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Jens Palm Bacher

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Re: Sennheiser N antenna cables, watchout
« Reply #5 on: September 12, 2015, 02:56:11 pm »

This is a problem with all air dielectric coax (Belden 9913, Wireman CQ102, etc): The repeated coiling and uncoiling causes the center conductor to walk. Especially bad on shorter cables. This type of coax was never designed for repeated deployments. I'll bet the other end of Jens' coax had the pin recessed too far into the connector.
In this case it was just bad manufactoring, both ends was too far forward.
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ProSoundWeb Community

Re: Sennheiser N antenna cables, watchout
« Reply #5 on: September 12, 2015, 02:56:11 pm »


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